threat actor
English
Etymology
Likely US Government jargon, derived from actor (“one that takes part in an action”). First attested in 2000.
Noun
threat actor (plural threat actors)
- (computer security) A person or entity that conducts malicious activities against digital targets, particularly cyberattacks.
- Threat actors have repeatedly attempted to breach our systems, without success.
- 2000 August, Bill Flynt, “Threat Kingdom”, in Military Review, volume 80, number 4, United States Army Combined Arms Center, page 17:
- A pure threat actor is less complex in capabilities and intent than a mixed type. The most complex actor would possess “the highest and most encompassing” capabilities and intent and compromise a threat kingdom of potential strategies.
- 2016 October 26, Roland Dobbins, Steinthor Bjarnason, “Mirai IoT Botnet Description and DDoS Attack Mitigation”, in NETSCOUT[1], archived from the original on 1 March 2019:
- As noted above, multiple threat actor groups are actively working to expand and improve the DDoS attack capabilities of Mirai-variant botnets.
- 2026 January 10, Anu Priya, “17.5 Million Instagram Accounts Exposed in Major Data Leak”, in Cyber Press[2], archived from the original on 10 January 2026:
- The compromised dataset appeared on a notorious hacking forum earlier this week, posted by a threat actor operating under the alias "Solonik."